The threat of social-environmental destruction is a fundamental challenge for those who are interested in creating and maintaining liveable worlds. This volume will bring together international scholars in science and technology studies, environmental studies, ecological humanities, art and design, geography and other social sciences to explore practices of repairing damaged and precarious ecologies through various societal, environmental and material involvements across different locations and geographies. Contributions will offer novel theoretical perspectives and empirical insights on the reparative and insurgent capacity of mending ecologies to craft relations of care and sustenance of human and nonhuman communities. The volume will be divided into several sections that are organized around a series of concepts that denote countervailing forces, processes and movements of damaging and repairing. Each section will consist of two or three contributions that offer experimental explorations of what ecological reparation means, and each section will begin with a short note that briefly describes the key concepts and issues that will be explored within.